pivotal-jbarrett commented on a change in pull request #6037:
URL: https://github.com/apache/geode/pull/6037#discussion_r580666049
##########
File path:
geode-membership/src/main/java/org/apache/geode/distributed/internal/membership/gms/GMSMembership.java
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@@ -1231,23 +1197,16 @@ public void shutdownMessageReceived(ID id, String
reason) {
if (logger.isDebugEnabled()) {
logger.debug("Membership: recording shutdown status of {}", id);
}
- synchronized (this.shutdownMembers) {
- this.shutdownMembers.put(id, id);
- services.getHealthMonitor()
- .memberShutdown(id, reason);
- services.getJoinLeave().memberShutdown(id, reason);
- }
+ this.shutdownMembers.add(id);
+ services.getJoinLeave().memberShutdown(id, reason);
}
@Override
public Set<ID> getMembersNotShuttingDown() {
- latestViewReadLock.lock();
- try {
- return latestView.getMembers().stream().filter(id ->
!shutdownMembers.containsKey(id))
+ synchronized (shutdownMembers) {
Review comment:
You are saying that currently the shutdownMembers collection can be
mutated without acquiring the write lock? If that is the case wouldn't the more
appropriate fix be to acquire the write lock before mutation rather than adding
a serializing synchronization block here?
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